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Hanoi air quality at 'very bad' level


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Smog in Hanoi's Cau Giay District, November 16, 2021. Photo by VnExpress/Ngoc Thanh

 

Monitoring results recorded at various stations across Hanoi on Sunday show Hanoi's air quality index at officially designated "very bad" level.

 

At Sunday noon, three monitoring stations run by the municipal Environment Department showed Air Quality Index (AQI) of above 200.

 

The AQI is a metric used to measure how polluted the air is. An AQI level above 100 is considered unhealthy for humans. Children, seniors, and individuals with respiratory and heart diseases are recommended to avoid sustained and high-intensity outdoor exercises when AQI levels reach 150 or above.

 

Full Story: https://e.vnexpress.net/news/news/hanoi-air-quality-at-very-bad-level-4402066.html

 

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-- © Copyright VN Express 2021-12-13

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